CN207319724U - A kind of multicore twisted-pair cable - Google Patents

Abstract

The utility model discloses a kind of multicore twisted-pair cable, mainly include cable pipe and conducting wire, the cable pipe is internally provided with anti-crack net, diamagnetic interference layer is provided between anti-crack net and the cable pipe, the anti-crack net is internally provided with cross star frame, and anti-crack net in four cavitys of cross star frame composition with being respectively arranged with conducting wire, the conducting wire side is provided with tear rope, the cable pipe outer wall is coated with wearing layer, the cable inside pipe wall is coated with flame-retardant layer, the utility model is simple in structure, practical safe and convenient, with wear-resisting, it is fire-retardant, resistance to compression, distortion-free advantage, electromagnetism interference can also be improved at the same time, and it can be suitable for using under rugged environment, service life is grown.

Description

A kind of multicore twisted-pair cable

Technical field

It the utility model is related in technical field of communication equipment, be specially a kind of multicore twisted-pair cable.

Background technology

At present, the fast development of intelligent grid proposes traditional optical cable and power transmission new requirement, and plastic light Fine composite cable as intelligent grid build in staple product, integrate fiber optic communication and power transmission, have it is more soft, It is flexible, continue conveniently, it is cheap the advantages of, meet intelligent grid information-based, automation, it is interactive the needs of, be optical fiber To the preferable transmission medium of family last one kilometer.Existing plastic optical fiber electricity composite cable is by oversheath, is located in oversheath And the insulating power core (conducting wire) and fiber unit that twist together are formed, wherein electric power core and fiber unit be respectively Just twist together after each self-forming, during electric power core and optical fiber are twisted, during the impaired situation of optical fiber There is generation, once optical fiber is damaged in stranding process, not only results in optoelectronic composite cable and scrap, and can cause to early period Waste through molding fiber optic materials；Meanwhile when needing more electric power cores, electric power core twists together easy generation Electromagnetic induction and increase conductive resistance and generate heat, so as to cause security risk.Further, since it is twisted between optical fiber and conducting wire Together, thus can not using the preferable tensile property of conducting wire come to optical fiber implement protect, in the construction process, optical fiber by It is also relatively conventional that problem is damaged in optoelectronic composite cable both ends tension；Furthermore in current optoelectronic composite cable, the oversheath Polyurethane jacket, pe sheath or pvc sheath are used mostly, and plastic optical fiber is to the temperature requirement of use environment Compare strictly, traditional optoelectronic composite cable using polyurethane jacket, pe sheath or pvc sheath is to use Hot melting way and fiber unit and cable combination stranding, in the process, the primary characteristic of optical fiber material is highly vulnerable to breakage, damaged Fiber unit so that fiber-optic signal decay exceeds standard value, ultimately results in product rejection, therefore current optoelectronic composite cable exists The problem of scrappage height and unstable performance.

Utility model content

It is proposed in the above background technology to solve the purpose of this utility model is to provide a kind of multicore twisted-pair cable Problem.

To achieve the above object, the utility model provides following technical solution：A kind of multicore twisted-pair cable, including cable pipe And conducting wire, the cable pipe are internally provided with anti-crack net, diamagnetic interference layer, the cracking resistance are provided between anti-crack net and the cable pipe Net is internally provided with cross star frame, and is respectively arranged with conducting wire in anti-crack net and four cavitys of cross star frame composition, institute State conducting wire side and be provided with tear rope, the cable pipe outer wall is coated with wearing layer, and the cable inside pipe wall is coated with flame-retardant layer；

The wearing layer includes phenolic coating, delustring bottom and hydrophobic oleophobic surface layer, is applied above the delustring bottom Phenolic coating is covered with, the hydrophobic oleophobic surface layer is coated on phenolic coating；

The flame-retardant layer includes solid composite and liquid tack coat, and the liquid tack coat is coated in solid composite Lower section, the solid composite include reinforcing fiber layer, glass layer and fire resisting rare earth layer, the reinforcing fiber layer, glass Fibrous layer and fire resisting rare earth layer close-packed arrays successively；

The diamagnetic interference layer includes aramid layers and tinfoil paper layer, and aramid layers are arranged on below tinfoil paper layer.

Preferably, the anti-crack net includes net body and reinforcing rib, and reinforcement is equipped with the grid cell of the net body Muscle, the reinforcing rib pass through the centre position of grid cell, and multiple reinforcing ribs are arranged in parallel along the distribution arrangement of grid cell, The reinforcing rib is twisted by ribbon and fibrillated yarn.

Preferably, reinforcing ring is additionally provided with, and reinforcing ring is arranged between anti-crack net and cross star frame.

Preferably, the cross star frame is the cross of the central solid runic of starlike deformation.

Compared with prior art, the beneficial effects of the utility model are：The utility model is simple in structure, and practical safety is just Victory, has the advantages that wear-resisting, fire-retardant, resistance to compression, distortion-free, while can also improve electromagnetism interference, and can be suitable for severe In the environment of use, service life length, in order to effectively improve the resistance to compression anti-deformation of cable, the utility model employs cross Star frame is the cross of the central solid runic of starlike deformation, while is also provided with and adds between anti-crack net and cross star frame Qiang Huan, in order to effectively improve anti-crack net crack resistance, the utility model employ be provided with the net body of anti-crack net it is more Root reinforcing rib, the centre position of grid cell, and distribution arrangement of multiple reinforcing ribs along grid cell are passed through using reinforcing rib It is arranged in parallel, to improve the crack resistance of net body.

Brief description of the drawings

Fig. 1 is the utility model structure diagram.

Fig. 2 is the utility model anti-crack net structure diagram.

Fig. 3 is the wear-resisting Rotating fields schematic cross-sectional view of the utility model.

Fig. 4 is the utility model flame-retardant layer structure schematic cross-sectional view.

Fig. 5 is the diamagnetic interference Rotating fields schematic cross-sectional view of the utility model.

Embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work All other embodiments obtained, shall fall within the protection scope of the present invention.

- 5 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of multicore twisted-pair cable, including 1 He of cable pipe Conducting wire 2, cable pipe 1 are internally provided with anti-crack net 3, diamagnetic interference layer 4 are provided between anti-crack net 3 and cable pipe 1, inside anti-crack net 3 Cross star frame 5 is provided with, and anti-crack net 3 in four cavitys of the composition of cross star frame 5 with being respectively arranged with conducting wire 2, conducting wire 2 Side is provided with tear rope 6, and 1 outer wall of cable pipe is coated with wearing layer 7, and 1 inner-wall spraying of cable pipe has flame-retardant layer 8；This practicality is new Type is simple in structure, practical safe and convenient, has the advantages that wear-resisting, fire-retardant, resistance to compression, distortion-free, while can also improve anti-electromagnetism and do Immunity, and can be suitable for using under rugged environment, service life length.Wearing layer 7 includes phenolic coating 9, delustring bottom Layer 10 and hydrophobic oleophobic surface layer 11, the top of delustring bottom 10 are coated with phenolic coating 9, and hydrophobic oleophobic surface layer 11 is coated in phenol On urea formaldehyde coating 9；It is capable of the self-cleaning effect and wear resistence of effectively high cable pipe outer wall using this design structure, utilizes hydrophobic oleophobic Higher feeler and roll angle on surface layer, droplet and oil droplet can voluntarily be tumbled, left no trace, and can effectively prevent the stagnant of rainwater Stay, it is ensured that the clean rate on surface, while phenolic coating has good physics, chemical property, it is to metal and nonmetallic The surface of material has excellent adhesive strength, and dielectric properties are good, and deformation retract rate is small, and product size stability is good, hardness Height, pliability are preferable.Flame-retardant layer 8 includes solid composite 12 and liquid tack coat 13, and liquid tack coat 13 is coated in solid group The lower section of compound 12, solid composite 12 include reinforcing fiber layer 14, glass layer 15 and fire resisting rare earth layer 16, reinforcing fiber Layer 14, glass layer 15 and fire resisting rare earth layer 16 close-packed arrays successively；The fibrous layer that the utility model is set has larger Rigid and excellent rotproofness；With excellent chemical stability and electrical insulating property；Fire resisting rare earth layer has the excellent of heat-insulating, fire-preventing Point；Improve its fire resistance.Diamagnetic interference layer 4 includes aramid layers 17 and tinfoil paper layer 18, and aramid layers 17 are arranged on tinfoil paper layer 18 Lower section；The anti-interference for effectively improving cable can be used using this design structure.

In the utility model, anti-crack net 3 includes net body 19 and reinforcing rib 20, is worn in the grid cell 21 of net body 19 There is reinforcing rib 20, reinforcing rib 20 passes through the centre position of grid cell 21, distribution of multiple reinforcing ribs 20 along grid cell 21 Direction is arranged in parallel, and reinforcing rib 20 is twisted by ribbon and fibrillated yarn；Using this design structure, can effectively improve wear-resisting Damage, corrosion-resistant, shock resistance, do not fall off, the features such as service life is long, can prevent cable from damaged, cracking phenomena occur.

In addition, in the utility model, reinforcing ring 22 is additionally provided with, and reinforcing ring 22 is arranged on anti-crack net 3 and cross star bone Between frame 5；Cross star frame 5 is the cross of the central solid runic of starlike deformation；Using this design structure, can effectively carry The resistance to compression anti-deformation of high cable.

While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art, It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from the principle of the utility model and spirit, repaiied Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.

Claims (4)

1. a kind of multicore twisted-pair cable, including cable pipe (1) and conducting wire (2), it is characterised in that：Set inside the cable pipe (1) There is anti-crack net (3), diamagnetic interference layer (4) is provided between the anti-crack net (3) and cable pipe (1), is set inside the anti-crack net (3) Cross star frame (5) is equipped with, and anti-crack net (3) in four cavitys of cross star frame (5) composition with being respectively arranged with conducting wire (2), conducting wire (2) side is provided with tear rope (6), and cable pipe (1) outer wall is coated with wearing layer (7), the cable pipe (1) Inner-wall spraying has flame-retardant layer (8)；

The wearing layer (7) includes phenolic coating (9), delustring bottom (10) and hydrophobic oleophobic surface layer (11), the delustring Phenolic coating (9) is coated with above bottom (10), the hydrophobic oleophobic surface layer (11) is coated in phenolic coating (9) On；

The flame-retardant layer (8) includes solid composite (12) and liquid tack coat (13), and the liquid tack coat (13) is coated in The lower section of solid composite (12), the solid composite (12) include reinforcing fiber layer (14), glass layer (15) and resistance to Fiery rare earth layer (16), the reinforcing fiber layer (14), glass layer (15) and fire resisting rare earth layer (16) close-packed arrays successively；

The diamagnetic interference layer (4) includes aramid layers (17) and tinfoil paper layer (18), and aramid layers (17) are arranged on tinfoil paper layer (18) Lower section.

A kind of 2. multicore twisted-pair cable according to claim 1, it is characterised in that：The anti-crack net (3) includes net originally Body (19) and reinforcing rib (20), the grid cell (21) of the net body (19) is interior to be equipped with reinforcing rib (20), the reinforcing rib (20) centre position of grid cell (21) is passed through, multiple reinforcing ribs (20) parallel set along the distribution arrangement of grid cell (21) Put, the reinforcing rib (20) is twisted by ribbon and fibrillated yarn.

A kind of 3. multicore twisted-pair cable according to claim 1, it is characterised in that：Reinforcing ring (22) is additionally provided with, and Reinforcing ring (22) is arranged between anti-crack net (3) and cross star frame (5).

A kind of 4. multicore twisted-pair cable according to claim 1, it is characterised in that：The cross star frame (5) is star The cross of the central solid runic of shape deformation.